1·Farmers are extremely busy during the harvest.
农民在收获季节里十分忙碌。
—— 《牛津词典》
2·IVF clinics can be extremely busy.
IVF的门诊是极其忙碌的。
3·The post office was extremely busy.
邮局相当的繁忙。
4·I'm extremely busy.
我非常忙。
5·So this day has been extremely busy.
所以这天确实是非常忙。
6·I'm extremely busy now. Can it wait a while?
我现在忙极了，可以等我一会儿吗？
7·He leads an extremely busy life to make money.
他为了赚钱过着异常忙碌的生活。
8·I eat out because I am extremely busy during the week.
我就是因为平时太忙了，所以才出去吃。
9·We have been extremely busy with a large conference these days.
我们这些天正在举行一场非常繁忙而又大型的会议。
10·She is extremely busy, so she has to budget her time carefully.
她忙极了，所以必须好好安排时间。